| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be proved to be | 14 |
|
| 2 | have be proved to be | 14 |
|
| 3 | [verb] been proved to be | 14 |
|
| 4 | [vb -s] be proved to be | 7 |
|
| 5 | has be proved to be | 7 |
|
| 6 | [vb base] be proved to be | 5 |
|
| 7 | have be proved to be | 5 |
|
